Electronic device

Abstract

An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion

What is claimed is: 
     
         1 . An electronic device comprising:
 a secondary battery;   a display portion; and   a structure body interposed between the secondary battery and the display portion,   wherein each of the secondary battery, the display portion and the structure body is flexible,   wherein the structure body has an arch-like cross-sectional shape,   wherein the electronic device is used while being worn on a human body, and   wherein the electronic device is worn on a human body by deflecting the structure body and widening an opening of the arch-like cross-sectional shape.   
     
     
         2 . The electronic device according to  claim 1 , wherein the secondary battery is electrically connected to the display portion. 
     
     
         3 . The electronic device according to  claim 1 ,
 wherein the structure body comprises an opening,   wherein the display portion comprises a display panel and a flexible printed wiring board electrically connected to the display panel, and   wherein the flexible printed wiring board is electrically connected to the secondary battery through the opening of the structure body.   
     
     
         4 . The electronic device according to  claim 1 ,
 wherein the display portion comprises a display panel and a flexible printed wiring board electrically connected to the display panel, and   wherein the secondary battery and each of the display panel and the flexible printed wiring board overlap each other.   
     
     
         5 . The electronic device according to  claim 1 , wherein the secondary battery is closer to a human body than the display portion when the electronic device is worn. 
     
     
         6 . An electronic device comprising:
 a secondary battery;   a display portion; and   a structure body interposed between the secondary battery and the display portion,   wherein each of the secondary battery, the display portion and the structure body is flexible and has a curved surface on a first side,   wherein the structure body has an arch-like cross-sectional shape,   wherein the structure body comprises a first region, a second region, and a third region between the first region and the second region,   wherein the third region and each of the secondary battery and the display portion overlap each other,   wherein the secondary battery and each of the first region and the second region do not overlap each other,   wherein the curved surface of the third region has a larger radius of curvature than the curved surface of the first region,   wherein the electronic device is used while being worn on a human body, and   wherein the electronic device is worn on a human body by deflecting the structure body and widening an opening of the arch-like cross-sectional shape.   
     
     
         7 . The electronic device according to  claim 6 , wherein the secondary battery is electrically connected to the display portion. 
     
     
         8 . The electronic device according to  claim 6 ,
 wherein the structure body comprises an opening,   wherein the display portion comprises a display panel and a flexible printed wiring board electrically connected to the display panel, and   wherein the flexible printed wiring board is electrically connected to the secondary battery through the opening of the structure body.   
     
     
         9 . The electronic device according to  claim 6 ,
 wherein the display portion comprises a display panel and a flexible printed wiring board electrically connected to the display panel, and   wherein the secondary battery and each of the display panel and the flexible printed wiring board overlap each other.   
     
     
         10 . The electronic device according to  claim 6 , wherein the secondary battery is closer to a human body than the display portion when the electronic device is worn. 
     
     
         11 . An electronic device comprising:
 a secondary battery;   a display portion; and   a structure body interposed between the secondary battery and the display portion,   wherein each of the secondary battery, the display portion and the structure body is flexible and has a curved surface on a first side,   wherein the structure body has an arch-like cross-sectional shape,   wherein the structure body comprises a first region, a second region, and a third region between the first region and the second region,   wherein the third region and each of the secondary battery and the display portion overlap each other,   wherein the secondary battery and each of the first region and the second region do not overlap each other,   wherein the electronic device is used while being worn on a human body,   wherein the electronic device is worn on a human body by deflecting the structure body and widening an opening of the arch-like cross-sectional shape, and   wherein each of the first region and the second region has a larger change of a radius of curvature than the third region at the time of deflecting the structure body to wear the electronic device.   
     
     
         12 . The electronic device according to  claim 11 , wherein the secondary battery is electrically connected to the display portion. 
     
     
         13 . The electronic device according to  claim 11 ,
 wherein the structure body comprises an opening,   wherein the display portion comprises a display panel and a flexible printed wiring board electrically connected to the display panel, and   wherein the flexible printed wiring board is electrically connected to the secondary battery through the opening of the structure body.   
     
     
         14 . The electronic device according to  claim 11 ,
 wherein the display portion comprises a display panel and a flexible printed wiring board electrically connected to the display panel, and   wherein the secondary battery and each of the display panel and the flexible printed wiring board overlap each other.   
     
     
         15 . The electronic device according to  claim 11 , wherein the secondary battery is closer to a human body than the display portion when the electronic device is worn.